In creating a Loader job, which of the following steps can set the filter type?
In creating a Loader job, which of the following steps can set the filter type?A . Input settings b. Conversion c. output D. Basic informationView AnswerAnswer: A
What data types of application scenarios are HBase of Hadoop not suitable for?
What data types of application scenarios are HBase of Hadoop not suitable for?A . Large file application scenarios B. Mass data application scenarios C. High throughput application scenarios D. Semi-structured data application scenariosView AnswerAnswer: A
Which parameter needs to be configured to enable the log aggregation function of the YARN component on the Hadoop platform?
Which parameter needs to be configured to enable the log aggregation function of the YARN component on the Hadoop platform?A . YARN.nodemanager.local-dir B. YARN.nodemanager.log-dirs C. YARN.acl.enable D. YARN.log-aggregation-enableView AnswerAnswer: D
How many copies of HDFS blocks are saved by default in the Fusionlnsight HD system?
How many copies of HDFS blocks are saved by default in the Fusionlnsight HD system?A . 3 _ B. 2 C. 1 D. not sureView AnswerAnswer: A
Which instance must be deployed with the Loader instance in FusionInsight HD?
Which instance must be deployed with the Loader instance in FusionInsight HD?A . DataNodes B. RegionServer C. Resource Manager D. Node ManagerView AnswerAnswer: D
Which of the following descriptions about Hive features is wrong?
Which of the following descriptions about Hive features is wrong?A . Flexible and convenient ETL B. Only supports MapReduce computing engine C. Can directly access HDFS files and HBase D. Easy to use and easy to programView AnswerAnswer: B
Which of the following description of Flink barrier is wrong?
Which of the following description of Flink barrier is wrong?A . The barrier is periodically inserted into the data stream and flows as part of the data stream B. barrier is the core of Flink snapshot C. A barrier separates the data of this cycle snapshot from the data of...
Which of the following HDFS commands can be used to check the integrity of a data block?
Which of the following HDFS commands can be used to check the integrity of a data block?A . HDFS fsck B. HDFS fsck -delete C. HDFS dfsadmin -report D. HDFS balancer-threshold 1View AnswerAnswer: A
Regarding DataSet, which of the following statements is wrong?
Regarding DataSet, which of the following statements is wrong?A . DataSet is a strongly typed collection of domain-specific objects B. DataSet can perform most operations without deserialization C. DataSet performs sort, filter, shuffle and other operations that need to be deserialized D. DataSet is highly similar to RDD, and its...
When MRS Loader creates a job, what is the role of the connector?
When MRS Loader creates a job, what is the role of the connector?A . Configure the connection method between the job and the external data source B. Configure the connection method between the job and the internal data source C. Provide optimization parameters to improve data import and export performance...